SERVICING
START
FAULT DIAGNOSIS
Does the pilot ignite?
No
Is the gas supply turned on?
Yes
Is the supply pressure correct?
Yes
Is their a spark at the electrode? 
Yes
Check to ensure the pilot assy is not obstructed or faulty
Yes
No
Turn gas on
No
Correct pressure
No
Check piezo igniter
Does the pilot stay alight?
No
Is their air in the system?
No
Is the thermocouple o.k.?
Yes
Is pilot injector obstructed?
No
Has spillage monitoring system been activated?
Yes
Yes 
Purge system
No
Correct
alignment or
replace
Yes
Clean
No
Does the main burner light?
No
Is the main injector blocked?
No
Is the flue blocked?
No
Confirm supply pressure is correct
Yes
Fire satisfactory
Yes
Clean and replace as necessary
Carry out smoke test
Yes
Investigate flue systems
Check all pipe connections check main valve magnet
22 | Becton Bunny & Becton 7 mk3 Gas stoves |